Diagsheet

2015 Ford Mustang · symptom sheet

Engine stalls or loses power while driving

  • 28owner reports
  • 6,000median miles
  • 1involved a crash

Newest report Jul 26, 2026 · checked Sep 9, 2026

164 of the 435 complaints on this car are about the engine. 28 of those describe stalling.

Tick what matches of 28 reports

11
8
13
6
2

What got replaced

Owners who name the part that was replaced mention the battery (5 reports).

Recalls and investigations

3 recalls on the engine cover the 2015 model year. A recall on the same system isn't always the same failure, so read the defect text.

16V-779Oct 26, 2016
Engine And Engine Cooling:Cooling System:Hoses/Lines/Piping/Fittings

Ford Motor Company (Ford) is recalling certain model year 2015-2017 Mustang vehicles manufactured February 24, 2015, to August 30, 2016. A hose may separate from the engine oil cooler tube assembly causing an oil leak.

Risk and remedy
Risk: A sudden loss of engine oil may cause engine failure, increasing the risk of a crash. Additionally, an oil leak, in the presence of an ignition source, increases the risk of a fire.
Remedy: Ford will notify owners, and dealers will replace the engine oil cooler tube assembly, free of charge. The recall began on March 23, 2017. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 16S40.
15V-339Jun 2, 2015
Fuel System, Gasoline:Storage:Tank Assembly

Ford Motor Company (Ford) is recalling certain model year 2015 Ford Mustang vehicles manufactured February 14, 2014, to February 10, 2015, and equipped with 2.3L engines. Prolonged exposure to elevated underbody temperatures can cause degradation of the fuel tank and/or fuel vapor lines, which may eventually result in a fuel leak. In addition, this condition could cause seals in the parking brake cable to degrade, potentially affecting parking brake function.

Risk and remedy
Risk: If the vehicle experiences a fuel leak in the presence of an ignition source it can, increase the risk of a vehicle fire. Reduced parking brake function could potentially result in unexpected vehicle movement, which may increase the risk of injury.
Remedy: Ford will notify owners, and dealers will replace the fuel tank shield, add thermal patches to the fuel tank and parking brake cable, and add thermal wraps to the fuel vapor lines. The repairs will be performed free of charge. The recall began on July 9, 2015. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 15S19.
14V-774Dec 5, 2014
Fuel System, Gasoline

Ford Motor Company (Ford) is recalling certain model year 2015 Ford Mustang vehicles manufactured September 25, 2014, to October 9, 2014. The fuel pressure sensor may not have been seated properly to the fuel jumper line, which may cause a fuel leak.

Risk and remedy
Risk: A partially seated fuel pressure sensor could cause a fuel odor or a fuel leak, increasing the risk of a vehicle fire in the presence of an ignition source.
Remedy: Ford will notify owners, and dealers will replace the fuel jumper line, free of charge. The recall began on December 17, 2014. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 14S27.

NHTSA investigations into the engine on the Mustang

PE11-024opened Aug 3, 2011
Transmission and drivetrain · model years 2011 to 2012

Inability to shift gears on acceleration. Closed dec 14, 2011.

NHTSA summary
The Office of Defects Investigations (ODI) analyzed complaint data provided by Ford as well as complaints submitted to ODI from consumers.In total, there were 364 unique reports indicating various shift quality issues while driving.Ford identified several factors that may contribute to shift quality concerns in the subject vehicles, including cold transmission, clutch stay-out at high engine speeds, gear clash or grinding, and gradual loosening of clutch plate bolts in some early production vehicles.The largest percentage of complaints indicated higher than expected shift efforts in cold ambient temperatures.These complaints were related to transmission fluid viscosity and the higher shift efforts resolved themselves with the drivetrain warming.Ford published technical service bulletin TSB 11-3-18 to inform technicians that a lower viscosity fluid was available for use to address the cold shift issues.The clutch stay-out condition typically occurs at engine speeds greater than 4000 rpm.It does not prevent the selection of any gear, but may delay clutch re-engagement depending on how long the driver maintains the higher engine speed.Ford identified rotating inertia of the clutch components as the root cause and replacement clutch pedal parts were made available under Ford TSB 10-19-4.A number of reports alleged increasing difficulty selecting gears along with gear clash or grinding.Grinding or notchy gear shifts may be caused by gradual loosening of clutch plate fasteners, whi
DP05-005opened Sep 22, 2005
Engine And Engine Cooling · model years 1997 to 2004

Spark plug ejection from cylinder head. Closed jan 4, 2006.

NHTSA summary
ON SEPTEMBER 6, 2005, ODI RECEIVED A PETITION REQUESTING THAT THE AGENCY INVESTIGATE ALLEGATIONS OF ENGINE SPARK PLUG EJECTION IN CERTAIN MODEL YEAR 1997 THROUGH 2004 FORD VEHICLES WITH TRITON V-8 AND V-10 ENGINES.ODI RECEIVED A TOTAL OF 474 NON-DUPLICATIVE COMPLAINTS ON THE SUBJECT VEHICLES WHERE THE COMPLAINANT, OR THE DEALER REPAIRING THE VEHICLE, REPORTED THAT A SPARK PLUG DETACHED FROM THE CYLINDER AND/OR EJECTED FROM THE ENGINE.AS OF DECEMBER 8, 2005, ODI IS NOT AWARE OF ANY ALLEGATIONS WHERE THE ALLEGED DEFECT RESULTED IN A LOSS OF VEHICLE CONTROL, A CRASH, AN INJURY, OR A FATALITY IN ANY OF THE 10,319,810 SUBJECT VEHICLES.IN ADDITION, ODI IS AWARE OF ONLY TWO INCIDENTS WHERE THE VEHICLE STALLED WITHOUT RESTART.INFORMATION CONTAINED IN THE ODI CONSUMER COMPLAINTS AND OBTAINED FROM 72 TELEPHONE INTERVIEWS WITH COMPLAINANTS SHOWED THE FOLLOWING:(1) 99% OF THE COMPLAINTS WERE ON MY 1997 TO 2002 SUBJECT VEHICLES.(2) MOST THE COMPLAINANTS REPORTED HEARING A LOUD POP WHILE DRIVING OR UPON STARTING UP THE VEHICLE FOLLOWED BY A LOUD, REPETITIVE CLICKING OR POPPING SOUND.(3) MANY OF THE COMPLAINANTS REPORTED THAT THE POPPING SOUND WAS ACCOMPANIED BY SOME LOSS OF VEHICLE POWER; HOWEVER, IN 99% OF THE INCIDENTS REPORTED, THE VEHICLE DID NOT STALL.IN THE VERY FEW INCIDENTS WHERE THE VEHICLE DID STALL, MOST VEHICLES COULD BE RESTARTED.(4) ONLY A SMALL PERCENTAGE OF THE COMPLAINANTS CITED THAT THEY SMELLED GAS OR A SLIGHT BURNING SMELL WHEN THE INCIDENT OCCURRED.(5) IN ALL BUT A VER
PE99-029opened May 3, 1999
Electrical · model years 1998

Fires in the center console. Closed jul 27, 1999.

NHTSA summary
There is no summary currently available
PE87-028opened May 1, 1987
Electrical · model years 1984 to 1986

Stalling. Closed jan 21, 1988.

NHTSA summary
NO SAFETY DEFECT TREND HAS BEEN DETECTED.===

None of these investigations covers the 2015 model year.

When it happens

The middle half of failures fell between 2,171 and 61,000 miles, from the 19 reports that gave a mileage.

715
216
317
418
119
121
122
323
324
225
126

What owners wrote

“The evaporator is leaking and apparently is a known issue from ford and they didn't report this. The evaporator core is leaking and it blows hot air for a good amount. It draws a lot of power form the system and drops the rpm below idling. Forcing me to rev a cold engine so that it does not stall out.”

Filed Sep 22, 2025

“Brake lights don’t function brake switch bumper broke off and lights stay on but not bright when brake is depressed. Loss of power random misfire cut from loss of power. Brake switch fault in computer”

Filed Aug 26, 2024

“outside of car always smells of antifreeze, not sure where from, don't see a leek. car sometimes feels like it stalling”

Filed Feb 7, 2023 · 137,052 miles

“Canister purge valve malfunction stuck in an open position. If this occurs, an excessive vacuum in the fuel system could cause deformation of the vehicle’s plastic fuel tank. Indicator light check engine with fluctuating or inaccurate fuel levels. This could lead to a stall while driving and/or an inability to restart the vehicle, which can increase the risk of a crash.”

Filed Mar 26, 2022

Should you keep driving it?

This page can't tell you that. 1 of 28 reports involved a crash and 2 people were hurt. Owners who file are the ones who had a bad experience, and nobody checks their reports. If the problem affects steering, braking, power or a fire risk, treat it as a safety fault and have it inspected before a long or high-speed drive.

File your own report with NHTSA. Complaint counts are how a problem gets an investigation.

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